Hello! Help with phrag?

Hi, I graduated last year from grocery store orchids when I attended my first orchid show. My collection is up to about 35 plants, mostly Oncidium and related. I got a couple of Paphs at the show last year that have done well, and decided to branch out and get two Phrags at the show this April. Both were bare root plants from Ecuagenera. The wallisii seems to be doing just fine, and both are potted in Repotme’s slipper mix, with a little bit of sphagnum added. The Elizabeth March doesn’t look so great though. She is a pale yellow-green, and her leaves are curling under. I’ve moved her a bit farther back from the window, she has a humidity tray, and is not allowed to dry out. Any suggestions for a newbie Phrag owner?